面向等残余面形误差的分层修形模具气囊抛光轨迹规划方法  

Layering Shaping Mould Gasbag Polishing Trajectory Planning Method for Equal Residual Figure Error

作　　者：陈国达[1] 计时鸣[1] 金明生[1] 张才[1] 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014

出　　处：《兵工学报》2012年第6期724-729,共6页Acta Armamentarii

基　　金：国家自然科学基金项目(50575208);浙江省自然科学基金项目(M503099)

摘　　要：气囊抛光方法可成功应用于模具自由曲面,实现自动化抛光。提出一种面向等残余面形误差的分层修形模具气囊抛光轨迹规划新方法,该方法可用于等残余面形误差工件的整个面形修正过程或非等残余面形误差状态下气囊抛光工艺中的某一阶段。针对光栅型抛光轨迹给出一种基于一次去除深度函数数值仿真的驻留点间距优选方法,并设计了对比性实验进行验证。实验结果表明,以X方向为进给方向的光栅型轨迹中,驻留点间距值选择去除模型中最大去除量1/2处对应Y值的两倍是合理的。A new approach called as layering shaping gasbag polishing trajectory planning method was proposed to deal with equal residual figure error. It can be used to the whole polishing process for the workpiece with equal residual facial contour error and certain polishing stage for the workpiece with non- equal residual facial contour error. The optimal selection method of dwelling point interval under grating polishing trajectory was presented on the basis of one-time removal depth function, and the contrast ex- periment was designed to validate its feasibility. The experiment results show that it is reasonable to choose twice of the corresponding Y value in material removal model as the dwelling point interval if X di- rection is feed direction of polishing.

关 键 词：机械制造工艺与设备 模具 气囊抛光 等残余面形误差 分层 轨迹规划 

分 类 号：TH16[机械工程—机械制造及自动化]